Illinois Police May Demand Your Name, But Silence Is Not a Crime

Illinois codified its version of a Terry stop in 1968 and has never added the penalty clause that turns a demand into a duty. Section 107-14(a) of the Code of Criminal Procedure lets an officer stop a person in a public place "for a reasonable period of time" on a reasonable inference that the person is committing, is about to commit, or has committed an offence, and then "demand the name and address of the person and an explanation of his actions." Two limits sit inside that single sentence. The officer must first identify himself as a peace officer, and the questioning must be conducted "in the vicinity of where the person was stopped," so a stop under this section is not authority to move someone to a station.

"Offence" is not left open. Section 102-15 defines it as "a violation of any penal statute of this State," which ties the stop power to Illinois penal law rather than to municipal ordinances or general suspicion.

What 107-14 does not contain is any consequence for a person who declines to answer. A full text search of the Criminal Code of 2012 returns no offence of refusing or failing to identify, and none exists in the Illinois Vehicle Code either. The only identification offence Illinois enacted runs the opposite way. 720 ILCS 5/31-4.5, added by Public Act 96-335 effective January 1, 2010, makes it a Class A misdemeanour to intentionally or knowingly furnish a false or fictitious name, residence address or date of birth to a peace officer who has lawfully arrested the person, has lawfully detained the person, or has requested the information from someone the officer has good cause to believe is a witness to a criminal offence. That third branch is unusual: it reaches bystanders who were never suspected of anything, and a witness who invents a name commits the offence even though the same witness could have said nothing at all.

Behind the wheel the answer changes entirely. 625 ILCS 5/6-112 requires every licensee or permittee to have the licence in immediate possession at all times when operating a motor vehicle and to display it on demand by a member of the Illinois State Police, a sheriff, another police officer or a designated agent of the Secretary of State. The section then defines display in a way that forecloses holding the card up to the window: it means "the manual surrender of his license certificate into the hands of the demanding officer for his inspection thereof." The current text dates from Public Act 102-538, effective August 20, 2021, which is the Act that renamed the Department of State Police. A violation is a petty offence under 625 ILCS 5/6-601(a) with a fine of not more than $500, but 6-112 carries its own escape hatch: no person charged may be convicted if he produces in court satisfactory evidence that a driver's licence had been issued to him and was valid at the time of arrest. Passengers are not licensees for this purpose and 6-112 does not reach them.

One more Illinois duty attaches to a specific group. Under 430 ILCS 66/10(h) of the Firearm Concealed Carry Act, a licensee or qualifying non-resident who is stopped in an investigative stop, expressly including a traffic stop, must on the officer's request disclose that he or she is carrying a concealed firearm or present the licence, must identify the location of the firearm, and must permit the officer to secure it for the duration of the stop. Subsection (h) applies to any passenger in the vehicle who is a licensee, not only to the driver.

Illinois also built a paper trail into the stop itself. Subsection (b) of 107-14, added by Public Act 99-352 effective January 1, 2016, requires an officer who conducts a frisk or search during a 107-14 stop to hand the person a stop receipt stating the reason for the stop and carrying the officer's name and badge number, where badge is defined as the officer's department issued identification number. The obligation yields only where it is impractical, impossible, or exigent, and it does not apply to inspections under the Fish and Aquatic Life Code, the Wildlife Code or the Herptiles-Herps Act, or to routine security screenings at facilities or events. A parallel data duty sits in 625 ILCS 5/11-212(b-5), which requires a uniform pedestrian stop card recording the reasons for any frisk or search of a person stopped in a public place.

Staying silent when an officer demands your name under 725 ILCS 5/107-14(a) is not chargeable in Illinois; the section creates no offence and the Criminal Code contains none. Giving a made up name is chargeable. 5-55 carries a determinate jail term of less than one year, a minimum fine of $75 and a maximum of $2,500. A driver who cannot or will not surrender the licence itself commits a petty offence under 625 ILCS 5/6-112, punishable under 6-601(b) by a fine of not more than $500, though the charge fails if the driver later produces satisfactory evidence in court that a valid licence existed at the time of arrest.

Physically frustrating the stop is a separate matter: 720 ILCS 5/31-1(a)(2) makes obstructing an authorized act by a known peace officer a Class A misdemeanour, and subsection (a-5) requires a minimum of 48 consecutive hours of imprisonment or at least 100 hours of community service, with probation unavailable to reduce it. 01, which permits a search for weapons only where the officer reasonably suspects that he or another is in danger of attack, and requires the weapon to be returned at the end of the questioning if it is lawfully possessed.